lib/json
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cleanup

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This commit is contained in:
Niels
2015-02-11 10:16:43 +01:00
parent d609790fff
commit c816fd12a0
3 changed files with 532 additions and 459 deletions
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85
src/json.hpp.re2c
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@ -2415,6 +2415,41 @@ class basic_json
inline lexer() = default;
inline static std::string token_type_name(token_type t)
{
switch (t)
{
case (token_type::uninitialized):
return "<uninitialized>";
case (token_type::literal_true):
return "true literal";
case (token_type::literal_false):
return "false literal";
case (token_type::literal_null):
return "null literal";
case (token_type::value_string):
return "string literal";
case (token_type::value_number):
return "number literal";
case (token_type::begin_array):
return "[";
case (token_type::begin_object):
return "{";
case (token_type::end_array):
return "]";
case (token_type::end_object):
return "}";
case (token_type::name_separator):
return ":";
case (token_type::value_separator):
return ",";
case (token_type::parse_error):
return "<parse error>";
case (token_type::end_of_input):
return "<end of input>";
}
}
/*!
This function implements a scanner for JSON. It is specified using
regular expressions that try to follow RFC 7159 and ECMA-404 as close
@ -2429,6 +2464,10 @@ class basic_json
*/
inline token_type scan()
{
// pointer for backtracking information
const char* m_marker = nullptr;
// remember the begin of the token
m_start = m_cursor;
/*!re2c
@ -2483,6 +2522,9 @@ class basic_json
// end of file
'\000' { return token_type::end_of_input; }
// anything else is an error
* { return token_type::parse_error; }
*/
}
@ -2542,8 +2584,6 @@ class basic_json
const char* m_cursor = nullptr;
/// pointer to the end of the buffer
const char* m_limit = nullptr;
/// pointer for backtracking information
const char* m_marker = nullptr;
};
class parser
@ -2699,7 +2739,7 @@ class basic_json
std::string error_msg = "parse error - unexpected \'";
error_msg += m_lexer.get_string_value();
error_msg += "\' (";
error_msg += token_type_name(last_token) + ")";
error_msg += lexer::token_type_name(last_token) + ")";
throw std::invalid_argument(error_msg);
}
}
@ -2713,49 +2753,14 @@ class basic_json
return last_token;
}
inline static std::string token_type_name(typename lexer::token_type t)
{
switch (t)
{
case (lexer::token_type::uninitialized):
return "<uninitialized>";
case (lexer::token_type::literal_true):
return "true literal";
case (lexer::token_type::literal_false):
return "false literal";
case (lexer::token_type::literal_null):
return "null literal";
case (lexer::token_type::value_string):
return "string literal";
case (lexer::token_type::value_number):
return "number literal";
case (lexer::token_type::begin_array):
return "[";
case (lexer::token_type::begin_object):
return "{";
case (lexer::token_type::end_array):
return "]";
case (lexer::token_type::end_object):
return "}";
case (lexer::token_type::name_separator):
return ":";
case (lexer::token_type::value_separator):
return ",";
case (lexer::token_type::parse_error):
return "<parse error>";
case (lexer::token_type::end_of_input):
return "<end of input>";
}
}
inline void expect(typename lexer::token_type t) const
{
if (t != last_token)
{
std::string error_msg = "parse error - unexpected \'";
error_msg += m_lexer.get_string_value();
error_msg += "\' (" + token_type_name(last_token);
error_msg += "); expected " + token_type_name(t);
error_msg += "\' (" + lexer::token_type_name(last_token);
error_msg += "); expected " + lexer::token_type_name(t);
throw std::invalid_argument(error_msg);
}
}